Base | Representation |
---|---|
bin | 111100100000011… |
… | …010100110010001 |
3 | 2121202010222021102 |
4 | 330200122212101 |
5 | 4034333134023 |
6 | 244421434145 |
7 | 34104316115 |
oct | 7440324621 |
9 | 2552128242 |
10 | 1015130513 |
11 | 481018641 |
12 | 243b6b955 |
13 | 132407057 |
14 | 98b69745 |
15 | 5e1be628 |
hex | 3c81a991 |
1015130513 has 4 divisors (see below), whose sum is σ = 1017422448. Its totient is φ = 1012838580.
The previous prime is 1015130489. The next prime is 1015130527. The reversal of 1015130513 is 3150315101.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 1015130513 - 26 = 1015130449 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (1015130573) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145303 + ... + 1146188.
It is an arithmetic number, because the mean of its divisors is an integer number (254355612).
Almost surely, 21015130513 is an apocalyptic number.
It is an amenable number.
1015130513 is a deficient number, since it is larger than the sum of its proper divisors (2291935).
1015130513 is an equidigital number, since it uses as much as digits as its factorization.
1015130513 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2291934.
The product of its (nonzero) digits is 225, while the sum is 20.
The square root of 1015130513 is about 31861.1128650586. The cubic root of 1015130513 is about 1005.0182790831.
Adding to 1015130513 its reverse (3150315101), we get a palindrome (4165445614).
The spelling of 1015130513 in words is "one billion, fifteen million, one hundred thirty thousand, five hundred thirteen".
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